Chemistry In Context
9th Edition
ISBN: 9781259638145
Author: Fahlman, Bradley D., Purvis-roberts, Kathleen, Kirk, John S., Bentley, Anne K., Daubenmire, Patrick L., ELLIS, Jamie P., Mury, Michael T., American Chemical Society
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Question
Chapter 5.4, Problem 5.8YT
(a)
Interpretation Introduction
Interpretation:
A slice of pizza contains 217 kcal (217 Cal). This value of energy has to be expressed in kilojoules.
Concept Introduction:
Calorie is the unit of energy and is the energy required to raise temperature of
Unit conversion
(b)
Interpretation Introduction
Interpretation:
The number of 1-kg books that could lift to a shelf 2m off the floor has to be calcultaed with the amount of energy from
Concept Introduction:
Calorie is the unit of energy and is the energy required to raise temperature of
Unit conversion
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Question 21 A serving of hot chocolate provides 5 g of fat, 2 g of protein, and 28 g of carbohydrate. How many Kcals are in the serving of hot chocolate?
Question 21 options:
112 Kcals
315 Kcals
45 Kcals
165 Kcals
really needs help in Bio problem.
Macmillan Learning
How many calories of heat (energy) would it take to heat 13.0 g of water from 31.0 °C to 59.0 °C?
q=
How many kilocalories of heat (energy) would it take to heat 193.0 g of water from 23.0 °C to 87.0 °C?
9=
cal
kcal
W
Chapter 5 Solutions
Chemistry In Context
Ch. 5.1 - Prob. 5.1YTCh. 5.1 - Prob. 5.2YTCh. 5.1 - Consult the interactive trends found in the...Ch. 5.1 - Prob. 5.4YTCh. 5.2 - For each of the fuels below, write the balanced...Ch. 5.2 - Prob. 5.6YTCh. 5.3 - Prob. 5.7YTCh. 5.4 - Prob. 5.8YTCh. 5.4 - Prob. 5.9YTCh. 5.4 - Scientific Practices Coal Versus Ethanol On the...
Ch. 5.5 - Prob. 5.12YTCh. 5.5 - Prob. 5.13YTCh. 5.6 - Although power plants require several steps to...Ch. 5.7 - Prob. 5.15YTCh. 5.7 - Prob. 5.16YTCh. 5.7 - An input of energy can be used to decrease entropy...Ch. 5.8 - Prob. 5.18YTCh. 5.8 - Prob. 5.19YTCh. 5.8 - Prob. 5.20YTCh. 5.8 - Prob. 5.21YTCh. 5.10 - Prob. 5.22YTCh. 5.11 - The combustion of one gram of natural gas releases...Ch. 5.11 - a. During the extraction of natural gas, the...Ch. 5.12 - Prob. 5.25YTCh. 5.13 - Prob. 5.26YTCh. 5.13 - Beginning in the 1920s, the octane-booster...Ch. 5.15 - Prob. 5.28YTCh. 5.15 - Prob. 5.29YTCh. 5.16 - Prob. 5.30YTCh. 5.17 - Have you ever been served cherries Jubilee or...Ch. 5.17 - Prob. 5.34YTCh. 5 - Prob. 1QCh. 5 - Prob. 2QCh. 5 - Prob. 3QCh. 5 - Energy exists in different forms in our natural...Ch. 5 - A coal-burning power plant generates electrical...Ch. 5 - Prob. 6QCh. 5 - Prob. 7QCh. 5 - Prob. 8QCh. 5 - Mercury (Hg) is present in trace amounts in coal,...Ch. 5 - Prob. 10QCh. 5 - Here are the condensed structural formulas for two...Ch. 5 - Prob. 12QCh. 5 - Prob. 13QCh. 5 - Consider these three hydrocarbons: At room...Ch. 5 - During petroleum distillation, kerosene and...Ch. 5 - Prob. 16QCh. 5 - a. Write the balanced chemical equation for the...Ch. 5 - Prob. 18QCh. 5 - Prob. 19QCh. 5 - State whether these processes are endothermic or...Ch. 5 - Use the bond energies in Table 5.1 to calculate...Ch. 5 - Use the bond energies in Table 5.1 to calculate...Ch. 5 - Ethanol can be produced by fermentation. Another...Ch. 5 - Here are structural formulas for ethane, ethene...Ch. 5 - These three compounds all have the same chemical...Ch. 5 - Catalysts speed up cracking reactions in oil...Ch. 5 - Explain why cracking is a necessary part of the...Ch. 5 - Consider this equation representing the process of...Ch. 5 - Prob. 29QCh. 5 - Consider these three alcohols: methanol, ethanol,...Ch. 5 - Prob. 31QCh. 5 - Prob. 32QCh. 5 - Prob. 33QCh. 5 - Compare and contrast a molecule of biodiesel with...Ch. 5 - Use Figure 5.6 to compare the energy released for...Ch. 5 - Prob. 36QCh. 5 - The sustainability of burning coal (and other...Ch. 5 - In this chapter, we approximated the chemical...Ch. 5 - Prob. 39QCh. 5 - Compare the processes of combustion and...Ch. 5 - How might you explain the difference between...Ch. 5 - Write a response to this statement: Because of the...Ch. 5 - The concept of entropy and probability is used in...Ch. 5 - Bond energies such as those in Table 5.1 are...Ch. 5 - Use the bond energies in Table 5.1 to explain why...Ch. 5 - Prob. 46QCh. 5 - Prob. 47QCh. 5 - Prob. 48QCh. 5 - Prob. 49QCh. 5 - Prob. 50QCh. 5 - Prob. 51QCh. 5 - Prob. 52QCh. 5 - Prob. 53QCh. 5 - Use a diagram to show the relationship among these...Ch. 5 - On a timescale of a few years, the combustion of...Ch. 5 - Emissions of some pollutants are lower when...Ch. 5 - Although coal contains only trace amounts of...Ch. 5 - Prob. 58QCh. 5 - An article in Scientific American pointed out that...Ch. 5 - C. P. Snow, a noted scientist and author, wrote an...Ch. 5 - Chemical explosions are very exothermic reactions....Ch. 5 - Prob. 63QCh. 5 - Tetraethyllead (TEL) was first approved for use in...Ch. 5 - Tetraethyllead (TEL) has an octane rating of 270....Ch. 5 - Another type of catalyst used in the combustion of...Ch. 5 - Figure 5.8 shows energy differences for the...Ch. 5 - Prob. 68Q
Knowledge Booster
Similar questions
- ercise 10.3 A 5.63-g sample of solid gold is heated from 21 to 32 °C. How much energy (in joules and calories) is required?arrow_forwardMacmillan Learning Carbohydrates serve as a vital source of chemical energy to the human body. Carbohydrates are broken down into smaller units of glucose, among other sugars, providing energy to various muscles and organs, including the brain. On average, for every 7.00 g of carbohydrates consumed, the body will store 119 kJ of energy. Convert this energy value to kilocalories (kcal). 119 kJ = 4.184 Incorrect FEB 21 tv MacBook Pro Attempt 3 A kcalarrow_forwardock Learning Goal: The conversion factor between mass and number of moles is called molar mass. By consulting the periodic table, we can determine that the molar mass of NaCl is 23.0 g/mole + 35.5 g/mole = 58.5 g/mole This number tells us that 1 mole of NaCl has a mass of 58.5 g The conversion factors are 58.5 g 1 mole and esc Here is an example of the conversion of 12.0 moles of NaCl to grams using the first conversion factor: 12.0 moles x 1 Q 1 mole 58.5 g F1 A 58.5 g 1 mole 2 JE -702 g F2 W S JUL 27 20 # 3 F3 E D DO $ 4 F4 Part A R What is the mass of 5.60 moles of magnesium chloride, MgCl₂? Express your answer with the appropriate units. ▶ View Avallable Hint(s) mass of MgCl₂ Submit Part B F How many moles of nitrogen, N, are in 71.0 g of nitrous oxide, N₂O? Express your answer with the appropriate units. ►View Available Hint(s) Value % са HA 5 F5 T μA Value 6 G Units MacBook Air F6 DELET FORMARE Y & 7 ? H Units stv F7 U ▶11 8 J ? A FBarrow_forward
- One way to lose weight is to exercise! Walking briskly at 4.0 miles per hour for an hour consumes about 400 kcal of energy. How many hours would you have to walk at 4.0 miles per hour to lose one pound of body fat? One gram of body fat is equivalent to 7.7 kcal of energy. There are 454 g in 1 lb.arrow_forwardSTARTING AMOUNT X The average adult human burns 2.00 × 10³ kcal per day in energy. What is this rate in kJ per hour ? ADD FACTOR days x() 4184 4.184 kJ/hr 20.0 2.01 x 106 kcal 60 S J 24 1000 KJ ANSWER 1.15 x 105 hr 349 2.00 x 10³ cal 0.001 RESET 5 min 1 kcal/dayarrow_forwardA compound with a mass of 45.632 grams was added to 500.0 ml of water with an initial temperature of 26.7 °C. After thorough mixing, the temperature increased to 29.9 °C. How many calories were transferred? The density of water is 1.00 g/ml. (Please only type answer)arrow_forward
- When 1 mole of CH4(g) reacts with H2O(g) to form H2(g) and CO(g) according to the following equation, 206 kJ of energy are absorbed.CH4(g) + H2O(g)3H2(g) + CO(g)Is this reaction endothermic or exothermic? _________endothermicexothermicWhat is the value of q? kJarrow_forwardQuestion 18 of 31 How many atoms of mercury are required to produce 3.49L of H2 gas (density = %D 0.0899 g/L ) according to the balanced chemical reaction: 2 Hg(1) + 2 HNO:(aq) → Hg (NOs):(aq) + H2(g) 0.0899 1 H2 g H2 ADD FACTOR DELETE ANSWER RESET -( ) 525.2 1 2.02 1.87 x 1023 1.87 63.01 2 1.01 9.42 x 1020 7.20 x 1020 9.35 x 1022 3.49 0.0899 200.6 6.022 x 1023 g Hg:(NO:)2 mol H2 mol Hg mol Hg:(NO:)2 g H2 g H2/L atoms Hg mol HNO, L H2 g HNO,arrow_forwardExercise #96 Calculate the enthalpy of reaction, AHn, for the reaction between hydrogen chloride gas and fluorine using the reactions provided below. 4 HCI(g) + O,(g) → 2 H,O(1) + 2 Cl,(g) AH = -148.4 kJ AH = -285.8 kJ H2(g) + ½ O2(g) → H2O(1) AH = 600.0 kJ %3D HF(1) → ½ H2(g) + ½ F2(g) 2 HCI(g) + F2(g) 2 HF(1) + Cl, (g)arrow_forward
- Use and interconvert energy units. A tank contains 236 gallons of oil. This is the equivalent of 3.45x1010 J of energy. How many kcal of energy does this oil represent? kcal Check & Submit Answer Show Approach étv hulu 22 A <3gי F11 F10 * F5 F9 F4 F6 F7 F8 & * 4 5 6 T. Y Uarrow_forwardHello I have asked this question like 3 times and keep getting difference answers can someone check my work please 2 b and C I am really struggling on please help.arrow_forwardExercise 3. a) Consider the oxidation of ammonia by oxygen according to the reaction scheme: 2NH319) +502699 2 NO G9) + 3H₂0 (97 BH ², 298K = - 109k cal Calculate the standard molar enthalpy of formation of Mittsca) Knowing that the standard mular enthalpiles of formation of NOC) and H₂veg). He have: DHj 2964 NO cg) = 21.5 kcalmel" Alf, 296K H₂009) = -58.0 kcalmal"arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
Chemistry: An Atoms First Approach
Chemistry
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning